peach_pit/peach_pi fix memory bandwidth to 32bit

data sheet tell memeory is 64bit bus width.
But spd memory size will get from memory bus width.
When we change bus width, memory size will be changed.

BUG=chrome-os-partner:28032
TEST=manual, mosys spd print all -k on pit 2GB,4GB machine

Change-Id: I3a29db97118c5cb828703557f4dac2ae269d4707
Reviewed-on: https://chromium-review.googlesource.com/194890
Reviewed-by: Katie Roberts-Hoffman <katierh@chromium.org>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: Jongpil Jung <jongpil19.jung@samsung.com>
Reviewed-by: Puthikorn Voravootivat <puthik@chromium.org>
Commit-Queue: Puthikorn Voravootivat <puthik@chromium.org>
Tested-by: Puthikorn Voravootivat <puthik@chromium.org>
(cherry picked from commit 041b1f887f34029f8b9415d7b02cc2233c3b305f)
Reviewed-on: https://chromium-review.googlesource.com/195054
Reviewed-by: Jongpil Jung <jongpil19.jung@samsung.com>
Commit-Queue: Jongpil Jung <jongpil19.jung@samsung.com>
1 file changed